From 4fcb3542bdf3b02e0a9c7923ad8a3ee365cbe674 Mon Sep 17 00:00:00 2001
From: Simen Bekkhus <sbekkhus91@gmail.com>
Date: Thu, 18 Feb 2021 18:03:48 +0100
Subject: [PATCH] chore: bump emittery

---
 packages/jest-core/package.json   |  2 +-
 packages/jest-runner/package.json |  2 +-
 packages/jest-runner/src/index.ts |  7 ++++++-
 yarn.lock                         | 12 ++++++------
 4 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/packages/jest-core/package.json b/packages/jest-core/package.json
index afa3c749e2d0..f73eaaf28ee4 100644
--- a/packages/jest-core/package.json
+++ b/packages/jest-core/package.json
@@ -17,7 +17,7 @@
     "@types/node": "*",
     "ansi-escapes": "^4.2.1",
     "chalk": "^4.0.0",
-    "emittery": "0.8.0",
+    "emittery": "^0.8.1",
     "exit": "^0.1.2",
     "graceful-fs": "^4.2.4",
     "jest-changed-files": "^27.0.0-next.1",
diff --git a/packages/jest-runner/package.json b/packages/jest-runner/package.json
index 254ef4880fbe..cc428af40bc6 100644
--- a/packages/jest-runner/package.json
+++ b/packages/jest-runner/package.json
@@ -21,7 +21,7 @@
     "@jest/types": "^27.0.0-next.1",
     "@types/node": "*",
     "chalk": "^4.0.0",
-    "emittery": "0.8.0",
+    "emittery": "^0.8.1",
     "exit": "^0.1.2",
     "graceful-fs": "^4.2.4",
     "jest-config": "^27.0.0-next.2",
diff --git a/packages/jest-runner/src/index.ts b/packages/jest-runner/src/index.ts
index 02e32d342b1f..19c1bd14d18a 100644
--- a/packages/jest-runner/src/index.ts
+++ b/packages/jest-runner/src/index.ts
@@ -282,7 +282,12 @@ export default class TestRunner {
     return Promise.race([runAllTests, onInterrupt]).then(cleanup, cleanup);
   }
 
-  on = this.eventEmitter.on.bind(this.eventEmitter);
+  on<Name extends keyof TestEvents>(
+    eventName: Name,
+    listener: (eventData: TestEvents[Name]) => void | Promise<void>,
+  ): Emittery.UnsubscribeFn {
+    return this.eventEmitter.on(eventName, listener);
+  }
 }
 
 class CancelRun extends Error {
diff --git a/yarn.lock b/yarn.lock
index f2459ebd7b6e..32060ab80ec8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1769,7 +1769,7 @@ __metadata:
     "@types/rimraf": ^3.0.0
     ansi-escapes: ^4.2.1
     chalk: ^4.0.0
-    emittery: 0.8.0
+    emittery: ^0.8.1
     exit: ^0.1.2
     graceful-fs: ^4.2.4
     jest-changed-files: ^27.0.0-next.1
@@ -7679,10 +7679,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"emittery@npm:0.8.0":
-  version: 0.8.0
-  resolution: "emittery@npm:0.8.0"
-  checksum: 4429ab522bb043473e2e1465e878cef1f17a4f98f2e831172a1598d541ea8faa25bbfc4f76fe54898e3e0e20f6ee170e69180842326d01b86431ca2e0411383c
+"emittery@npm:^0.8.1":
+  version: 0.8.1
+  resolution: "emittery@npm:0.8.1"
+  checksum: 1c9cd9a1045ce8e50e41b4433a6d3adf109cbb7585fe5d504399f2a035f423adb9b9bc6735aad672368575532007948d4483645e188fe99759c302a39542479d
   languageName: node
   linkType: hard
 
@@ -12104,7 +12104,7 @@ fsevents@^1.2.7:
     "@types/node": "*"
     "@types/source-map-support": ^0.5.0
     chalk: ^4.0.0
-    emittery: 0.8.0
+    emittery: ^0.8.1
     exit: ^0.1.2
     graceful-fs: ^4.2.4
     jest-config: ^27.0.0-next.2